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Atomic intercalation to measure adhesion of graphene on graphite

The interest in mechanical properties of two-dimensional materials has emerged in light of new device concepts taking advantage of flexing, adhesion and friction. Here we demonstrate an effective method to measure adhesion of graphene atop highly ordered pyrolytic graphite, utilizing atomic-scale ‘b...

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Autores principales: Wang, Jun, Sorescu, Dan C., Jeon, Seokmin, Belianinov, Alexei, Kalinin, Sergei V., Baddorf, Arthur P., Maksymovych, Petro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095517/
https://www.ncbi.nlm.nih.gov/pubmed/27796294
http://dx.doi.org/10.1038/ncomms13263
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author Wang, Jun
Sorescu, Dan C.
Jeon, Seokmin
Belianinov, Alexei
Kalinin, Sergei V.
Baddorf, Arthur P.
Maksymovych, Petro
author_facet Wang, Jun
Sorescu, Dan C.
Jeon, Seokmin
Belianinov, Alexei
Kalinin, Sergei V.
Baddorf, Arthur P.
Maksymovych, Petro
author_sort Wang, Jun
collection PubMed
description The interest in mechanical properties of two-dimensional materials has emerged in light of new device concepts taking advantage of flexing, adhesion and friction. Here we demonstrate an effective method to measure adhesion of graphene atop highly ordered pyrolytic graphite, utilizing atomic-scale ‘blisters' created in the top layer by neon atom intercalates. Detailed analysis of scanning tunnelling microscopy images is used to reconstruct atomic positions and the strain map within the deformed graphene layer, and demonstrate the tip-induced subsurface translation of neon atoms. We invoke an analytical model, originally devised for graphene macroscopic deformations, to determine the graphite adhesion energy of 0.221±0.011 J m(−2). This value is in excellent agreement with reported macroscopic values and our atomistic simulations. This implies mechanical properties of graphene scale down to a few-nanometre length. The simplicity of our method provides a unique opportunity to investigate the local variability of nanomechanical properties in layered materials.
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spelling pubmed-50955172016-11-18 Atomic intercalation to measure adhesion of graphene on graphite Wang, Jun Sorescu, Dan C. Jeon, Seokmin Belianinov, Alexei Kalinin, Sergei V. Baddorf, Arthur P. Maksymovych, Petro Nat Commun Article The interest in mechanical properties of two-dimensional materials has emerged in light of new device concepts taking advantage of flexing, adhesion and friction. Here we demonstrate an effective method to measure adhesion of graphene atop highly ordered pyrolytic graphite, utilizing atomic-scale ‘blisters' created in the top layer by neon atom intercalates. Detailed analysis of scanning tunnelling microscopy images is used to reconstruct atomic positions and the strain map within the deformed graphene layer, and demonstrate the tip-induced subsurface translation of neon atoms. We invoke an analytical model, originally devised for graphene macroscopic deformations, to determine the graphite adhesion energy of 0.221±0.011 J m(−2). This value is in excellent agreement with reported macroscopic values and our atomistic simulations. This implies mechanical properties of graphene scale down to a few-nanometre length. The simplicity of our method provides a unique opportunity to investigate the local variability of nanomechanical properties in layered materials. Nature Publishing Group 2016-10-31 /pmc/articles/PMC5095517/ /pubmed/27796294 http://dx.doi.org/10.1038/ncomms13263 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wang, Jun
Sorescu, Dan C.
Jeon, Seokmin
Belianinov, Alexei
Kalinin, Sergei V.
Baddorf, Arthur P.
Maksymovych, Petro
Atomic intercalation to measure adhesion of graphene on graphite
title Atomic intercalation to measure adhesion of graphene on graphite
title_full Atomic intercalation to measure adhesion of graphene on graphite
title_fullStr Atomic intercalation to measure adhesion of graphene on graphite
title_full_unstemmed Atomic intercalation to measure adhesion of graphene on graphite
title_short Atomic intercalation to measure adhesion of graphene on graphite
title_sort atomic intercalation to measure adhesion of graphene on graphite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095517/
https://www.ncbi.nlm.nih.gov/pubmed/27796294
http://dx.doi.org/10.1038/ncomms13263
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